Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation
The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The lumin...
Ausführliche Beschreibung
Autor*in: |
K. Shunkeyev [verfasserIn] A. Tilep [verfasserIn] A. Lushchik [verfasserIn] Sh. Sagimbayeva [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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In: Eurasian Journal of Physics and Functional Materials - L.N. Gumilyov Eurasian National University, 2019, 6(2022), 2, Seite 139-150 |
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Übergeordnetes Werk: |
volume:6 ; year:2022 ; number:2 ; pages:139-150 |
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Link aufrufen |
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DOI / URN: |
10.32523/ejpfm.2022060206 |
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Katalog-ID: |
DOAJ030629829 |
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520 | |a The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. | ||
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10.32523/ejpfm.2022060206 doi (DE-627)DOAJ030629829 (DE-599)DOAJb55eb37f04de45169a8a23c43a412f0c DE-627 ger DE-627 rakwb eng QC1-999 K. Shunkeyev verfasserin aut Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. alkali halide crystals x-ray luminescence quenching local and uniaxial deformation self-trapped exciton exciton-like luminescence electron-hole recombination exciton-like formation Physics A. Tilep verfasserin aut A. Lushchik verfasserin aut Sh. Sagimbayeva verfasserin aut In Eurasian Journal of Physics and Functional Materials L.N. Gumilyov Eurasian National University, 2019 6(2022), 2, Seite 139-150 (DE-627)1693817233 26168537 nnns volume:6 year:2022 number:2 pages:139-150 https://doi.org/10.32523/ejpfm.2022060206 kostenfrei https://doaj.org/article/b55eb37f04de45169a8a23c43a412f0c kostenfrei https://www.ephys.kz/jour/article/view/294/189 kostenfrei https://doaj.org/toc/2522-9869 Journal toc kostenfrei https://doaj.org/toc/2616-8537 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2022 2 139-150 |
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10.32523/ejpfm.2022060206 doi (DE-627)DOAJ030629829 (DE-599)DOAJb55eb37f04de45169a8a23c43a412f0c DE-627 ger DE-627 rakwb eng QC1-999 K. Shunkeyev verfasserin aut Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. alkali halide crystals x-ray luminescence quenching local and uniaxial deformation self-trapped exciton exciton-like luminescence electron-hole recombination exciton-like formation Physics A. Tilep verfasserin aut A. Lushchik verfasserin aut Sh. Sagimbayeva verfasserin aut In Eurasian Journal of Physics and Functional Materials L.N. Gumilyov Eurasian National University, 2019 6(2022), 2, Seite 139-150 (DE-627)1693817233 26168537 nnns volume:6 year:2022 number:2 pages:139-150 https://doi.org/10.32523/ejpfm.2022060206 kostenfrei https://doaj.org/article/b55eb37f04de45169a8a23c43a412f0c kostenfrei https://www.ephys.kz/jour/article/view/294/189 kostenfrei https://doaj.org/toc/2522-9869 Journal toc kostenfrei https://doaj.org/toc/2616-8537 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2022 2 139-150 |
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10.32523/ejpfm.2022060206 doi (DE-627)DOAJ030629829 (DE-599)DOAJb55eb37f04de45169a8a23c43a412f0c DE-627 ger DE-627 rakwb eng QC1-999 K. Shunkeyev verfasserin aut Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. alkali halide crystals x-ray luminescence quenching local and uniaxial deformation self-trapped exciton exciton-like luminescence electron-hole recombination exciton-like formation Physics A. Tilep verfasserin aut A. Lushchik verfasserin aut Sh. Sagimbayeva verfasserin aut In Eurasian Journal of Physics and Functional Materials L.N. Gumilyov Eurasian National University, 2019 6(2022), 2, Seite 139-150 (DE-627)1693817233 26168537 nnns volume:6 year:2022 number:2 pages:139-150 https://doi.org/10.32523/ejpfm.2022060206 kostenfrei https://doaj.org/article/b55eb37f04de45169a8a23c43a412f0c kostenfrei https://www.ephys.kz/jour/article/view/294/189 kostenfrei https://doaj.org/toc/2522-9869 Journal toc kostenfrei https://doaj.org/toc/2616-8537 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2022 2 139-150 |
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10.32523/ejpfm.2022060206 doi (DE-627)DOAJ030629829 (DE-599)DOAJb55eb37f04de45169a8a23c43a412f0c DE-627 ger DE-627 rakwb eng QC1-999 K. Shunkeyev verfasserin aut Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. alkali halide crystals x-ray luminescence quenching local and uniaxial deformation self-trapped exciton exciton-like luminescence electron-hole recombination exciton-like formation Physics A. Tilep verfasserin aut A. Lushchik verfasserin aut Sh. Sagimbayeva verfasserin aut In Eurasian Journal of Physics and Functional Materials L.N. Gumilyov Eurasian National University, 2019 6(2022), 2, Seite 139-150 (DE-627)1693817233 26168537 nnns volume:6 year:2022 number:2 pages:139-150 https://doi.org/10.32523/ejpfm.2022060206 kostenfrei https://doaj.org/article/b55eb37f04de45169a8a23c43a412f0c kostenfrei https://www.ephys.kz/jour/article/view/294/189 kostenfrei https://doaj.org/toc/2522-9869 Journal toc kostenfrei https://doaj.org/toc/2616-8537 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2022 2 139-150 |
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QC1-999 Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation alkali halide crystals x-ray luminescence quenching local and uniaxial deformation self-trapped exciton exciton-like luminescence electron-hole recombination exciton-like formation |
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Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation |
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The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. |
abstractGer |
The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. |
abstract_unstemmed |
The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to pure KCl has been detected in KCl-Na. The luminescence efficiency of an exciton-like formation increases with rise in: sodium ions concentration ( 10 ÷ 1000 ppm), thermal exposure ( 500◦C ÷ 600◦C ) and the degree of uniaxial deformation along <100< and <110< crystallographic directions. Previously, such a scale of the luminescence enhancement effect has not been registered in KCl matrix at room temperature. At high sodium concentrations (1000 ppm) in KCl-Na crystals, the additional intense emission with a maximum at 3.1 eV has also been revealed, which is typical for pair sodium ions. It is interpreted that the exciton-like formation in the sodium field with the maximum quantum yield of luminescence is formed by recombination assembly of electron-hole pairs due to the mobility of unrelaxed holes. |
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Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation |
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